Home / 3,089.80-4,629.30-2,603.80

Finding the Fourth Proportional to 3,089.80, 4,629.30 and 2,603.80

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Solution

The fourth proportional to 3,089.80, 4,629.30 and 2,603.80 is: 3,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,089.80 : 4,629.30 = 2,603.80 : x
  2. Step 2: Convert to fraction form
    3,089.80/4,629.30 = 2,603.80/x
  3. Step 3: Cross multiply
    3,089.80x = 4,629.30 × 2,603.80
  4. Step 4: Simplify right side
    3,089.80x = 12,053,771.34
  5. Step 5: Solve for x
    x = 12,053,771.34/3,089.80
  6. Step 6: Final answer
    x = 3,901.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.